SIL caught me

One fall day I was home alone and decided to get in the hot tub. I always get in nude so no big deal there. However I wasn’t expecting any company. So anyways I was laying there on my back just relaxing and I hear a knocking coming from our full length glass door that we have.

I turn quick not knowing who it is and to my surprise it was my SIL. She smiles a bit and asks if she can come outside. I try to cover myself and say sure. She says sorry to intrude I thought my sister told you I was coming by. I said nope sure didn’t guess it slipped her mind.

She then gets a smirk and says well I’ve always wanted to see what my sister gets to have fun with and now I’ve gotten quite the eyeful. We chat and flirt back and forth for a little while before she says ok well I gotta run I’ll see you later. We said our goodbyes and didn’t think much of it.

So about five minutes pass and I’ve gotten hard thinking about her seeing me and then the door opens and she walks out fully nude and says mind if I join you? I know yalls rule is no bathing suits so I hope that’s not going to be a problem. I said no not at all come on in.

So she gets in and we are both sitting there talking and looking at each others bodies when she starts making small brushes against me. She can tell I’m getting more and more turned on. She said well I’ve seen what my sister talks about now. Now I want to feel it stretch me like she said it stretches her!

She climbs on top and straddles me and begin grinding her hips against me while she leans down and starts making out with me. I reach around and grab her bare ass which is much bigger than her sisters and start giving it a gentle slap as it slides in and out of the water. My hands then slide between her cheeks and I start playing with ass hole and pussy. I gently slide a finger then 2 in and start fingering her.

She looks down as she’s moaning and says ok I’m ready for you. She gets up repositions herself then slides back down on top of my dick slowly. She’s biting her lip and moaning as it stretches her open. Once she gets it all the way in she starts riding me as she’s making out with me again.

We continue a while before she gets up turns around and gets on her knees and says ok fuck me hard now. I don’t argue with her and do exactly as she says! She’s moaning and screaming louder and louder with each thrust. I then say ok where do you want me to finish. She said pull out I’m going to suck you and swallow your load. She does exactly that! Hottest moment ever because her sister won’t swallow lol.